Key holder



FIG. 1 is a front elevational view of a key holder showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is an end elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a front elevational view thereof showing the compartment cover in partially open position. 

The ornamental design for a key holder, as shown and described. 